So you've got a fleet moving through enemy territory, and there are enemy fleets on radar. The distances are pretty great so you're doing an hour at a step.
The enemy get nearer, and one of your hour-long steps gets shortened to 15 seconds. And the next dozen or so do as well. Which means you've now got about a dozen salvos headed toward your fleet. These were fired from about 200m km, but you don't know for sure how fast these missiles are, so they could be anywhere from one to four hours away.
You're not worried about the missiles. The enemy fleet is small and you're confident that you've got more than enough missile defense to stop all the incoming. You want to just get it done as quick as possible. What do you do?
I've found that if I use 20-minute increments, the missiles can sometimes impact my ships without the point defenses going off. But for getting through a few hours, five-minute increments is painful.
Anyone got a good technique here?